Hot-water and steam radiator.



G. C'. ANDREWS &E. H. WILLIAMS. HOT WATER AND STEAK RADIATOR.

ArrLmA'non Hmm snrT. a. 1910.

1,023,793. Patented Apr. 23, 1912.

4 SHEETS-SHEET 1.

' s'. c. ANDREWS a; 2.1111. WILLIAMS.

How mm1 um snm: RADIATOR.

PPLIUTIOX :FILED VS}1T 3, 1910.

Patented Apr. ,23, 1912.I

4 emu-sazia 2.

G. C. ANDREWS & E. H. WILLIAMS.

HOT WATER AND STEAM RADIATOR.

APPLICATION FILED SEPT. 3, 1910.

Patented Apr. 23, 1912.

4 SHEETS-SHEET 3.

s. c. ANDREWS &E. H. WILLIAMS. HOT WATER AND STEAM RADIATOR. .APPLIQATIOX FILED SEPT.' 3, 1910.

1,023,793. v Pateted A111223, 1912.

4 SHEETS-snm 4. v

'mill G l' Inl WSTURIH im I@ www@ Huml'mm1 nu -l l UNITED sTArEs PATENT civic.

GEORGE C. ANDREWS AND EDWARD H. WILLIAMS, OE MINNEAPOLIS, MIN'NIISOTA.

- HOT-WATER AND STEAM RADIATOR.

a Specication of Letters Patent.

Patented Apr. 23,' 1912.

' Application mea september a, 1910. serial Np. 580,394.

To all 'whom t may concern.'

Be it known that we, GEORGE C. ANDREWS and EDWARD H. WILLIAMS, citizens of the United States,residing at Minneapolis, in the county of Hennepin and State'of Minnesot-a, have invented certain new and useful Improvements in Hot-Water and Steam Radiators; and we do hereby declare the following to be a full, clear, and exact descript-ion of the invention, such as will enable others skilled .in the art to which it appertains to make and use the same.

Our invent-ion has for its object to provide an improved hot water and steam radiator.

Particularly, the invention relates to the improvement of sheet steel radiators and has for its primary objects, cheapness of construction, increased heat radiating eiiiciency. in a radiator occupying a predetermined space, lightness in weight, durability, low cost, and neatness in appearance.

To the above ends the invention consist of the novel devices and combinat-ions of devices hereinafter described and defined in the claims.

illustrate the invention, like characters indicate like parts throughout. the several views.

Referring to the drawings: Figure l is a View chiefly in plan but with some parts in horizontal section showing the improved radiator; Fig. 2 is a view chiefly in elevation but with some parts in vertical section taken on the line m2 we of Fig. l, showing the said radiator; Fig. 3 is a fragmentary plan showing a portion of the radiator illustrated in Fig. 1 and Fig. 2; Fig. 4 is a transverse section taken on the irregular line m4 $4 of Fig. 3; Fig. 5 is a fragmentary View showing a portion ofone of the sheet metal plates of which theradiator is formed; Fig. 6 is a transverse vertical sect-ion taken on the same line as Fig. 4, showing on a larger scale, the upper portion of one lof the radiator secj tions; Fig. 7 is a detail in vertical section' taken on the line m7 of Fig. 6; and Fi s. 8 and 9 are views corres onding respectivy with Figs. l and 2 but illustrating a slightly modified construct-ion. i

The body of the improved radiator is preferably inade from two plates l of sheet steel bent into zigzag form so that the alternate folds are interlapped, that is, the folds ofthe one plate are interposed within the folds of the other plate and the two plates are closely positioned but spaced apart to form a thin zigzag channel 2 for the water, steam, or other heating medium. The folds of the said radiator arepreferably V shaped in horizontal cross-section.A At their verti` cal end extremities and at their horizontal upper and lower edges, the said plates 1 are brought together and united by steam tight joints, which joints are preferably formed by welding of the contiguous abut-ti edges ofthe said plates. The welding may conveniently'accomplished by what is known as the Oxy-acetylene process.

Our invention relates particularly to a novel formation of the upper and lower edges of the radiator forming plates whereby, in aneat and efficient manner, the said edges of the plates may be united to close the top and bottom of the zigzag water or portions l, and from the .upper points of` the V-shaped portions l, said upper and lower edges converge slightly downward to the imaginary line l". To form theradiator sections, the plate will be bent on the marked 1b. The upper and lower edges of the plate are bent on oblique lines marked 1 to thereby form oblique triangular surfacesl. Theedges of the triangularsections 1d of the one plate l are thus made to closely fit the correspondingly bent edges of the other plate and these edges are 'adapted to be united by welded joints indicated at y and y. The welded joints y, both at the top and bottom of the radiator, lie in horizontal planes, while the joints y lie in oblique planes. The joints yv give a 'beveled effect to the front and rear of both the u per and lower. portions of the radiator, and) the upper joints y lie in the same horizontal plane and, hence, aord a support upon which articles may be conveniently set. rlhis will be seen by reference, particularly, to Fig. 3. The horizontal joints y cross the radiator vvertical lines indicated by the dotted lines I sections obliqnely and extend from the ini portions of the radiator sect-ions.

In some instances, the bodies of the radiator sections will be made, substantially,-

flat, but indented at numerous points, as indicated at `8, so as to bring the plates together and adapt the same to be rigidly connected b welding of the contacting portions. Pre erably, however, the bodies of the radiator plates will be corrugated horizontally, as best shown in Figs. 2 and 4. This stiffens the radiator plates and makes it unnecessary to unite the intermediate portions thereof, and furthermore, increases the radiating surface of the radiator.

The radiator shown is reinforced both at its upper and lower portions by light tie bars 4: which are preferably welded' to the edges thereof, and the radiator, also as shown, is supported by legs 5 welded to the lower portion thereof.

The radiator described has, in practice,

been found highly eflicient for the purposes in view, and furthermore, it has beenfound that it may be constructed at comparatively small cost, and while light is, nevertheless, very strong and durable; The peculiar formation of the upper edges of the radiator plates give the 4same a neat, and somewhat ornamental appearance'.

' What we claim is:

1. A radiator made-up of laterally spaced sheet metal lates alternately bent so that the folds t ereof are approximately V shaped in cross-section, the said plates be ing interlap ed and spaced apart to form a;

zigzag cham er for the heating medium, and the u per and lower extremities or ends of the'p ates being formed with obliquely bent triangular portions, the edges of the triangular portions of the two plates `being united by steam-tight joints.

2. A radiator made up of laterally spaced brought together and connected by welded joints, theupper and lower edges of the plates are notched with V shape notches at alternate lines of bending of the plates into folds, the metal between the point of the notch and the other alternate line ofv bending lb between two notches is bent on a line u from the point of said notch to the inter-` section of line of bending 1b with the edge .of the metal sheet, to form an oblique triangle, and the edgesl of the said oblique trian les ofthe two plates being brought toget er and united by welded joints.

' 3. A radiator made up of laterally spaced sheet metal plates, alternately bent, so that the folds thereof are approximately V-shape in cross-section, the said plates being interlapped and spaced apartto vform a zigzag chamber for the heating medium, and the upperand lower edges ofi/the plates are notched with V-shape notches at alternate lines of bending of the plates into folds, the metal between the point of the notch and the other alternate line of bending l between two notches is bent on a line from the point of said notch to the intersection of line of bending-1b with the edge of the metalsheet, -to form an oblique triangle, and the edges of the said obllqu" triangles of the two plates beingbrought together and united by welded jolnts.

In testimony whereof we aliix vour signatures in presence of two witnesses.

, GEORGE C. ANDREWS.

EDWARD H. WILLIAMS. Witnesses:

BERNIGE G. *WHEELEL HARRY D. Kmaoma. 

